Question

我已经打了一个多小时了。我读过这个错误通常是因为MemoryStream在位图被释放之前被关闭了，但是在这里我没有处理任何东西。任何帮助都会受到鼓舞。

 public Image GetImageFromBytes(byte[] imageBytes)
    {
       var ms = new MemoryStream(imageBytes);
       return Image.FromStream(ms);
    }        

    public void ExportImage(byte[] imageBytes, String fileName)
    {
        var image = GetImageFromBytes(imageBytes);
        //  var resizedImg = GeneralHelper.ResizeImage(image,ImageWidth, ImageHeight) ;
        //  OverlayContactDetails(resizedImg);

        var path = Path.GetDirectoryName(fileName);

        if (!Directory.Exists(path))
            Directory.CreateDirectory(path);


        image.Save(fileName, ImageFormat.Jpeg);

    }

在.Save（）时抛出异常（如标题所示）。下面是堆栈跟踪

  at System.Drawing.Image.Save(String filename, ImageCodecInfo encoder, EncoderParameters encoderParams)
   at System.Drawing.Image.Save(String filename, ImageFormat format)
   at AdCreator.ImageExport.ExportImage(Byte[] imageBytes, String fileName) in c:\Users\Paavum Ex Machina\Documents\Visual Studio 2012\Projects\AdCreator\AdCreator\ImageExport.cs:line 70
   at AdCreator.ExportController.ExportImage(Byte[] image, String filePath, String agentText) in c:\Users\Paavum Ex Machina\Documents\Visual Studio 2012\Projects\AdCreator\AdCreator\ExportController.cs:line 69
   at AdCreator.ExportController.Export(String outputFilename) in c:\Users\Paavum Ex Machina\Documents\Visual Studio 2012\Projects\AdCreator\AdCreator\ExportController.cs:line 44
   at AdCreator.Controller.ExportAds(Ad[] ads, String[] templates, String outputFileName) in c:\Users\Paavum Ex Machina\Documents\Visual Studio 2012\Projects\AdCreator\AdCreator\Controller.cs:line 104
   at AdCreator.Create.<>c__DisplayClass3.<button2_Click>b__1() in c:\Users\Paavum Ex Machina\Documents\Visual Studio 2012\Projects\AdCreator\AdCreator\Create.cs:line 173
   at System.Threading.Tasks.Task.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()

image.save上的通用GDI +错误

0 个答案: